Bug 509: Improve logging in InMemoryDataStore.

[controller.git] / opendaylight / md-sal / sal-dom-broker / src / main / java / org / opendaylight / controller / md / sal / dom / store / impl / StoreUtils.java

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java
index 0692497b890c29f6d17316fd2b39fef3a95b25c5..830d7e3dc40303859748e5d1977eeaa3f7018c3b 100644 (file)
--- a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java
@@ -1,15 +1,136 @@
 package org.opendaylight.controller.md.sal.dom.store.impl;
 
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.StoreMetadataNode;
+import org.opendaylight.yangtools.concepts.Identifiable;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.AugmentationIdentifier;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifierWithPredicates;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
+
+import com.google.common.base.Function;
+import com.google.common.base.Strings;
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
 import com.google.common.primitives.UnsignedLong;
 
 public final class StoreUtils {
 
+    private final static Function<Identifiable<Object>, Object> EXTRACT_IDENTIFIER = new Function<Identifiable<Object>, Object>() {
+        @Override
+        public Object apply(final Identifiable<Object> input) {
+            return input.getIdentifier();
+        }
+    };
 
     public static final UnsignedLong increase(final UnsignedLong original) {
         return original.plus(UnsignedLong.ONE);
     }
 
+    public static final InstanceIdentifier append(final InstanceIdentifier parent, final PathArgument arg) {
+
+        return new InstanceIdentifier(ImmutableList.<PathArgument> builder().addAll(parent.getPath()).add(arg).build());
+    }
+
+    public static AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> initialChangeEvent(
+            final InstanceIdentifier path, final StoreMetadataNode data) {
+        return new InitialDataChangeEvent(path, data.getData());
+    }
+
+    /*
+     * Suppressing warnings here allows us to fool the compiler enough
+     * such that we can reuse a single function for all applicable types
+     * and present it in a type-safe manner to our users.
+     */
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public static <V> Function<Identifiable<V>, V> identifierExtractor() {
+        return (Function) EXTRACT_IDENTIFIER;
+    }
+
+    private static final class InitialDataChangeEvent implements
+            AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> {
+
+        private final ImmutableMap<InstanceIdentifier, NormalizedNode<?, ?>> payload;
+        private final NormalizedNode<?, ?> data;
+
+        public InitialDataChangeEvent(final InstanceIdentifier path, final NormalizedNode<?, ?> data) {
+            payload = ImmutableMap.<InstanceIdentifier, NormalizedNode<?, ?>> of(path, data);
+            this.data = data;
+        }
+
+        @Override
+        public Map<InstanceIdentifier, NormalizedNode<?, ?>> getCreatedData() {
+            return payload;
+        }
 
+        @Override
+        public Map<InstanceIdentifier, ? extends NormalizedNode<?, ?>> getOriginalData() {
+            return Collections.emptyMap();
+        }
 
+        @Override
+        public NormalizedNode<?, ?> getOriginalSubtree() {
+            return null;
+        }
 
+        @Override
+        public Set<InstanceIdentifier> getRemovedPaths() {
+            return Collections.emptySet();
+        }
+
+        @Override
+        public Map<InstanceIdentifier, NormalizedNode<?, ?>> getUpdatedData() {
+            return payload;
+        }
+
+        @Override
+        public NormalizedNode<?, ?> getUpdatedSubtree() {
+            return data;
+        }
+    }
+
+    public static <V> Set<V> toIdentifierSet(final Iterable<? extends Identifiable<V>> children) {
+        return FluentIterable.from(children).transform(StoreUtils.<V> identifierExtractor()).toSet();
+    }
+
+    public static String toStringTree(final StoreMetadataNode metaNode) {
+        StringBuilder builder = new StringBuilder();
+        toStringTree(builder, metaNode, 0);
+        return builder.toString();
+    }
+
+    private static void toStringTree(final StringBuilder builder, final StoreMetadataNode metaNode, final int offset) {
+        String prefix = Strings.repeat(" ", offset);
+        builder.append(prefix).append(toStringTree(metaNode.getIdentifier()));
+        NormalizedNode<?, ?> dataNode = metaNode.getData();
+        if (dataNode instanceof NormalizedNodeContainer<?, ?, ?>) {
+            builder.append(" {\n");
+            for (StoreMetadataNode child : metaNode.getChildren()) {
+                toStringTree(builder, child, offset + 4);
+            }
+            builder.append(prefix).append('}');
+        } else {
+            builder.append(' ').append(dataNode.getValue());
+        }
+        builder.append('\n');
+    }
+
+    private static String toStringTree(final PathArgument identifier) {
+        if (identifier instanceof NodeIdentifierWithPredicates) {
+            StringBuilder builder = new StringBuilder();
+            builder.append(identifier.getNodeType().getLocalName());
+            builder.append(((NodeIdentifierWithPredicates) identifier).getKeyValues().values());
+            return builder.toString();
+        } else if (identifier instanceof AugmentationIdentifier) {
+            return "augmentation";
+        }
+        return identifier.getNodeType().getLocalName();
+    }
 }